Oval ALTImass CA004 - 11.4 Regarding FISCO System of FOUNDATION fieldbus and PROFIBUS

L-737-3-E
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11.3 Inductance and Internal Resistance of Sensor Coil
Do not perform a repair involving the explosionproof construction. If servicing is necessary, contact your
nearest OVAL sales office or sales representative.
Sensor model
Drive circuit Circuits other than drive circuit
Drive coil
Drive
Resistance
(Ω)
Pickoff coil
Pickoff
resistance
(Ω)
Li max
(mH)
R min
(Ω)
Li max
(mH)
R min
(Ω)
CA004□1□XX□□□□□□□□
33.7 377.0
—
3.6 69.0
—
Fig.11.3
11.4 Regarding FISCO System of FOUNDATION fieldbus and PROFIBUS
Bus Line Connection Diagram
If the 16th digit of product code is“2 : FOUNDATION fieldbus (FF), Communication Specification”or
“3 : PROFIBUS, Communication Specification”, the transmitter is compatible with Intrinsic Safety
(IEC60079-11 Annex G).
Below are the allowable parameters of ALTImass transmitter:
Ui＝17.5V, Ii＝380mA, Pi=5.32W , Ci＝negligible low, Li＝10μH
Transmitter label to show the FF and PROFIBUS specifications
INTEGRAL MODEL
SEPARATE MODEL
POWER
POWER
TRANSMITTER
Ex d
［
ib
］
Ex d ib
Ex i
SENSOR
Ex ib
T
BUSLINE（FISCO）